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Keypad Technical_Mechanical

PCB Location

Keypad mechanical: PCB location
  • Pull through interference fit 'a'
  • Push through hollow to aid insulation 'b'

Keypad Hardness

    Keypad mechanical: keypad/keytop hardness
  • Base typically 55% shore
  • Keytops up to 90% shore

Control of Keystroke

Keypad mechanical: control of keystroke
  • Mechanical stops for controlling keystroke when using plastic keytops

Anti-rocking Device

Keypad mechanical: anti-rocking device
  • P = Diameter of post
  • P = 1.0mm
  • t = Height difference between post and conductive pill
  • t = 0.1#0.15mm



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